89.54 €
(tax incl.)
RX preamplifier with variable gain, protections and power over coax.
Preamp BOX with 2N5109 KIT
RX preamplifier with variable gain, protections and power over coax.
50.82 €
(tax incl.)
50.82 €
42.00 € (without tax)
42.00 € (without tax)
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This RX Preamplifier module BOX with 2N5109 transistor is based on W7IUV design. You can use it as high IP preamplifier for RX antennas (beverage, DHDL, flag etc.). Gain is up to 18 dB and there is also build in variable ATT. You can easy set the gain as high as you need! As well you can set right transistor bias with multi turn potentiometer. Two relays offer bypass switching if there is no power supply voltage. You can use external power supply connected to the box or the bias tee box for power over the coax.
Using
- High IP RX preamplifier - RX antennas
- Buffer amplifier
- Driver amplifier
Main functions
- Broadband: 0.1 MHz to 30 MHz
- Very high IP3
- Gain up to 18 dB
- High output power up to 26 dBm
- Variable ATT for gain 0 to 18 dB
- Bypass relays
- Front-end diode protection - ON/OFF by jumpers
- Power over coax with the Bias Tee BOX
- You can set transistor bias as you need by trimmer
- High quality relays with TWO contact parallel
- High quality connectors
- IP56 box - recommended to protect it against water
- Feeder size 100x100 mm
- KIT VERSION
Parameters
- Supply voltage 12 - 15 V
- Power directly or over the coax - bias tee - voltage 12 - 15 V
- Supply current up to 180 mA include relays!
- Gain up to 18 dB
- REAL IP3 37 dBm for 18 V / 90 mA - more info on my BLOG
Available as
KIT: all parts + PCB and IP56 box
ASSEMBLED: ready to use - ASSEMBLED VERSION
ASSEMBLED SMD version: ready to use - ASSEMBLED VERSION (only PL connector)
Connectors: PL SO-239 or F
PCB: only PCB
KIT contains
- PCB
- box IP56 (100x100 mm)
- connectors (PL SO-239 OR F)
- neon lamps
- resistors
- capacitors
- relays
- PTC resettable fuses
- diodes
- RTrimmers
- 2-pole wago
- inductors
- ferrite core
- 2N5109 transistor
- heatsink
- pin header, jumpers
- cable gland
- fasteners (screws, nuts, washers, spacer bolts)
- wire
- sticker
Manual
If you want to know more please check our wiki with Preamp Box manual.
version with PL SO-239 connectors
version with F connectors
assembled version with PL SO-239 connectors
assembled version with F connectors
RX Preamp BOX with Bias Tee BOX
 |
Gain 50 kHZ to 1 MHz
 |
Gain 1 MHz to 70 MHz
 |
Input SWR, S11
 |
Data sheet
- type
- KIT
- design
- in enclosure
- usage
- RX
- impedance
- both 50 & 75 Ohm
- front-end protection
- input and output
- frequency range
- 0.1 MHz to 30 MHz
- product dimensions
- 100x100x50 mm - PU box IP56
- PCB dimensions
- 95x95 mm
- product weight (brutto)
- 0.32 (F), 0.34 (PL) kg
- package dimensions
- 18.5x14x10.5 cm
Specific References
- ean13
- 1000090101396
Overall rating
5
1 Review
rating
(5)
Ronny, DM2RM
Something to do on a Sunday afternoon while it's raining outside all day. The preamplifier and the BIAS-T are already soldered. Remoteqth.com & QRO.cz kits are always fun to assemble. You could also buy them complete, but that way you also have a sense of achievement.
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